Results 31 to 40 of about 171 (94)
Glow discharge nitriding of nanobainitic X37CrMoV5-1 steel
, 2023 Abstract One of the methods of improving mechanical properties of steels is nanostructuring via austempering, which leads to formation of a nanobainitic microstructure - a fine carbide-free bainitic ferrite plates with retained austenite. Due to high density of grain and interphase boundaries, this microstructure provides high tensile strength.
Emilia Skołek +3 more
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MATEC Web of Conferences, 2016 The XRD analysis, microstructure observation and mechanical test were used to investigate the phase composition, micromorphology and mechanical properties of the intermediate transformation products in an ultra-low carbon steel non-containing Nb and Ti ...
Li Na +3 more
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Metals, 2019 Both ausforming and transformation temperature affect the successive bainitic transformation and microstructure. The individual influence of each case is clear, whereas the combined effects are still unknown. Thermomechanical simulation and metallography
Hang Zou +4 more
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PROTECTIVE EFFECTIVENESS OF ARMOUR MADE OF NANOBAINITIC STEEL
Journal of Metallic Materials, 2020 The article presents the results of tests on resistance to perforation of nanobainitic steel plates with a thickness in the range of 6–9 mm with the use of projectiles with different perforation mechanisms. Firing tests were carried out using 7.62×39 mm BZ ammunition in accordance with the requirements of the NATO Stanag 4569A standard document (level ...
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Steel Research InternationalThe effect of chemical segregation on the microstructure of isothermally heat‐treated nanobainitic steel containing 0.5C‐2.0Mn‐1.6Si‐1.6Cr‐0.55Mo (wt%) is investigated using dilatometry, light microscopy, scanning electron microscopy (SEM), and ...
B. Garbarz +5 more
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Effect of prior martensite on the thermal stability of nanobainitic steels
Materials Research Express, 2019 Two types of the nanobainitic microstructures which consist of plate-like bainitic ferrite, retained austenite with and without martensite were obtained by quenching to Ms-12 °C and ausforming by about 30% before isothermal bainitic transformation at 300 °C.
Yu Xinpan, Wu Huibin, Feng Fanfan
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Reverse Hall–Petch Effect of Nano-Bainite in a High-Carbon Silicon-Containing Steel
MetalsHigh-strength steels are widely used in various mechanical production and construction industries for their low cost, high strength and high toughness. Among these, bainitic steels have better comprehensive performance relative to martensite and ferrite.
Xin Zhang +5 more
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Effect of chemical segregation on nanobainitic transformation in laser cladded coatings
Materials & Design, 2015 Abstract Laser cladding and subsequent isothermal holding were employed to fabricate the Fe-based nanobainitic coatings. The microstructures of the isothermal heat treated coatings were observed and characterized by using the optical microscope (OM), filed-emission scanning electron microscope (FE-SEM), field-emission transmission electron microscope
Yanbing Guo +3 more
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Effect of Chemical Composition and Isothermal Treatment Duration on Nano-bainite Steels
MedžiagotyraEffect of chemical composition and isothermal treatment duration on nano-bainite steels is investigated in this work. The steels that contain Co, V and Al elements with high C are designed and produced. The nano-bainite microstructures can be obtained by
Jie DU +3 more
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Role of nano-bainite laths and nanosized precipitates: Strengthening a low-alloy steel to 1870 MPa
Journal of Materials Research and TechnologyStrength and ductility trade-off is a dilemma in the field of metallic materials. In this study, the ultrafine-grained low-alloy steel was prepared using hot rolling, warm rolling, and bainitic treatment processing.
W.Y. Niu +5 more
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